EP 1558955 A2 20050803 - WAFERLESS FIBER FABRY-PEROT FILTERS
Title (en)
WAFERLESS FIBER FABRY-PEROT FILTERS
Title (de)
WAFERLOSE FASER-FABRY-PEROT-FILTER
Title (fr)
FILTRES FABRY-PEROT A FIBRE SANS PLAQUETTE
Publication
Application
Priority
- US 0332929 W 20031015
- US 41876702 P 20021015
Abstract (en)
[origin: WO2004036700A2] Improved fiber Fabry-Perot (FFP) filter configurations are provided in which at least one of the mirror-ended fiber ends forming the FFP has a concave fiber core end. The mirror at that fiber core end is thus concave. The invention provides waferless FFP configurations in which the FFP cavity is an air-gap cavity formed by two highly reflective dielectric mirrors deposited directly on optical fiber ends. The air gap cavity can be tuned using various methods to tune the filter. Use of a concave mirror at the fiber core enables filters with improved performance characteristics: including very wide FSR (>12000 GHz) , very high finesse (>5,000), and high glitch-free dynamic range (GFDR) (>40dB). The invention also provides improved wafer-based FFP fixed and tunable filters that incorporate a concave mirror at a fiber core forming the FFP cavity and a fiber (SMF) waveguide within the cavity.
IPC 1-7
IPC 8 full level
IPC 8 main group level
H01S (2006.01)
CPC (source: EP US)
G02B 6/262 (2013.01 - EP US); G02B 6/29359 (2013.01 - EP US); G02B 6/29395 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004036700 A2 20040429; WO 2004036700 A3 20040902; WO 2004036700 A9 20040701; EP 1558955 A2 20050803; EP 1558955 A4 20060419; US 2004247244 A1 20041209; US 6904206 B2 20050607
DOCDB simple family (application)
US 0332929 W 20031015; EP 03809111 A 20031015; US 68693403 A 20031015